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earth elemaster...
Feats: 29 (22 can be epic)
Earth Monolith: Alertness, Awesome Blow, Cleave, Great Cleave, Improved Bull Rush, Improved Critical (slam), Improved Natural Attack (slam), Improved Overrun, Improved Sunder, Iron Will, Power Attack, Toughness, Weapon Focus (slam)
Primal Earth Elemental: Alertness, Cleave, Combat Reflexes, Devastating Critical (slam), Epic Prowess (x3), Epic Toughness (x6), Epic Will, Great Cleave, Improved Critical (slam), Improved Sunder, Iron Will, Lightning Reflexes, Overwhelming Critical (slam), Power Attack, Weapon Focus (slam)
Ogremoch: Awesome Blow, Blind-Fight, Cleave, Corrupt Summoning (B), Devastating Critical (slam), Epic Will, Great Cleave, Improved Bull Rush, Improved Critical (slam), Improved Initiative, Improved Overrun, Improved Sunder, Iron Will, Overwhelming Critical (slam), Power Attack, Quicken Spell-Like Ability (wall of stone), Weapon Focus (slam)
Sunnis: Awesome Blow, Blind-Fight, Cleave, Epic Skill Focus (Appraise), Epic Reflexes, Epic Toughness, Epic Will, Great Cleave, Improved Bull Rush, Improved Critical (slam), Improved Initiative, Improved Overrun, Improved Sunder, Iron Will, Power Attack, Purify Summoning (B), Weapon Focus (slam)
My recommendations: Alertness, Awesome Blow, Blind-Fight, Cleave, Combat Expertise, Combat Reflexes, Devastating Critical (slam), Divine Might, Epic Fortitude, Epic Prowess (x3), Epic Reflexes, Epic Skill Focus (Knowledge [the planes]), Epic Will, Great Cleave, Improved Bull Rush, Improved Critical (slam), Improved Overrun, Improved Sunder, Improved Trip, Legendary Leaper, Knock-Down, Overwhelming Critical (slam), Power Attack, Spellcasting Harrier Stand Still, Weapon Focus (slam)
If anyone has any other good ideas, I'd suggest cutting the multiple Epic Prowess feats first.